Durable colorless-change moisture-absorbing sweat-releasing composite finishing agent and preparation method thereof
A technology of moisture absorption and perspiration, finishing agent, applied in the direction of fiber processing, improved hand fiber, textile and paper making, etc. The effect of washfastness, good hygroscopicity and quick-drying properties
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Embodiment 1
[0028] (1) Put adipic acid, hexamethylenediamine and double-terminal carboxyl polyethylene glycol into the reactor, heat up to 170°C under nitrogen protection, keep warm for 0.5h, add phosphorous acid with 2% of the total amount of materials, and heat up to 240°C , vacuum reaction at 0.04MPa for 2 hours, after the reaction, the temperature was lowered to 70°C, and the reaction was stopped to obtain a polyamide polyester polyether block copolymer. 1:3:1;
[0029] (2) Add dimer alcohol to the reaction vessel, raise the temperature to 90°C for dehydration for 1.5 hours, add 1,6-hexamethylene diisocyanate, and keep it at 65°C for 2 hours; add 1,4 butanediol, and continue the heat preservation reaction at 65°C 2h; add solution dissolved in diethanolamine acetone to react and keep warm for 1.5 hours; add water at 50°C for 2h, add dilute hydrochloric acid with a mass concentration of 5% for neutralization, and remove the solvent to obtain a hydrophilic polyurethane polymer; wherein, ...
Embodiment 2
[0033] (1) Put adipic acid, hexamethylenediamine and double-terminal carboxyl polyethylene glycol into the reactor, heat up to 170°C under nitrogen protection, keep warm for 0.5h, add phosphorous acid with 2% of the total amount of materials, and heat up to 240°C , vacuum reaction at 0.04MPa for 2 hours, after the reaction, the temperature was lowered to 70°C, and the reaction was stopped to obtain a polyamide polyester polyether block copolymer. 1:3:1;
[0034](2) Add dimer alcohol to the reaction vessel, raise the temperature to 90°C for dehydration for 1 hour, add 1,6-hexamethylene diisocyanate, and keep it at 60°C for 2 hours; add 1,4 butanediol, and continue the heat preservation reaction at 70°C 2.5h; add solution dissolved in diethanolamine acetone to react and continue to keep warm for 1 hour; add water to react at 50°C for 2h, add dilute hydrochloric acid with a mass concentration of 5% for neutralization, and remove the solvent to obtain a hydrophilic polyurethane po...
Embodiment 3
[0038] (1) Put adipic acid, hexamethylenediamine and double-terminal carboxyl polyethylene glycol into the reactor, heat up to 170°C under nitrogen protection, keep warm for 1h, add phosphorous acid with 2% of the total amount of materials, and heat up to 240°C, Vacuum reaction at 0.04MPa for 2.5h, after the reaction, the temperature was lowered to 70°C, and the reaction was stopped to obtain a polyamide polyester polyether block copolymer. 1:3:1;
[0039] (2) Add dimer alcohol to the reaction vessel, raise the temperature to 90°C for dehydration for 2 hours, add 1,6-hexamethylene diisocyanate, and keep it at 70°C for 2 hours; add 1,4 butanediol, and continue the heat preservation reaction at 60°C 2h; add solution dissolved in diethanolamine acetone to react and continue to keep warm for 1.5 hours; add water to react at 50°C for 2.5h, add dilute hydrochloric acid with a mass concentration of 5% for neutralization, and remove the solvent to obtain a hydrophilic polyurethane pol...
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